Shoe guard



FIG. 1 is a left side elevational view of a shoe guard showing my new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof; and

FIG. 5 is a front elevational view thereof. 

The ornamental design for a shoe guard, as shown and described. 